Police reports for the first 25 vehicle accidents involving the Metro light rail reveal only one fact for certain: Aries are the safest drivers. The collisions began Nov. 19 although the light-rail system didn't open to the public until Jan. 1. The list keeps growing -- it hit 31 Monday -- but this roundup focuses on the 25 pioneers, a diverse group. Officers don't ask for drivers' horoscope signs, but a check of birth dates reveals no Aries among the crashers. But it seems Geminis like to drive on the wild side. There are two Marys and a Maria in...